Waste Water Engineering pH value of sludge during alkaline regression stage, is More than 7 Less than 7 More than 6 Less than 6 More than 7 Less than 7 More than 6 Less than 6 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Nitric acid Hydrochloric acid Citric acid Sulphuric acid Nitric acid Hydrochloric acid Citric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of 120 cm 140 cm 160 cm 100 cm 120 cm 140 cm 160 cm 100 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hydraulic mean radius is Mean radius of sewer Mean of radii in a pipe line of varying cross -sections Difference in heads between two points in circular pipes Cross-sectional area/wetted perimeter Mean radius of sewer Mean of radii in a pipe line of varying cross -sections Difference in heads between two points in circular pipes Cross-sectional area/wetted perimeter ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A drop manhole is provided if A lamp is inserted to check obstruction A branch sewer joins the main sewer at higher level None of these A sewer drops from a height A lamp is inserted to check obstruction A branch sewer joins the main sewer at higher level None of these A sewer drops from a height ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, Free board of 0.3 m may be provided All listed here The baffles or tees are extended up to top level of scum The clear space between the baffle top and covering slab is about 7.5 cm Free board of 0.3 m may be provided All listed here The baffles or tees are extended up to top level of scum The clear space between the baffle top and covering slab is about 7.5 cm ANSWER DOWNLOAD EXAMIANS APP
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